Fix grammar
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@ -543,7 +543,7 @@ bool same(int a, int b) {
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\begin{samepage}
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The function \texttt{unite} joins the sets
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that contain elements $a$ and $b$
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(the elements has to be in different sets).
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(the elements have to be in different sets).
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The function first finds the representatives
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of the sets and then connects the smaller
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set to the larger set.
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